RT Journal Article SR Electronic T1 Late-breaking abstract: Pulmonary function abnormalities among adolescent street children smokers in Indonesia JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP P1808 VO 44 IS Suppl 58 A1 Arif Budiman A1 Bambang Supriyatno A1 Nia Kurniati A1 Irawan Mangunatmaja A1 Hikari Ambara Sjakti A1 Najib Advani YR 2014 UL http://erj.ersjournals.com/content/44/Suppl_58/P1808.abstract AB Background: Street children and smoking prevalence are highly increasing. Studies on pulmonary function among adolescent street children smokers are still limited with controversial result.Objective: To determine proportion of pulmonary dysfunction among adolescent street children smokers and to evaluate relation between smoking behaviour with pulmonary dysfunction.Methods: A cross sectional study among 317 street children, aged 10-18 years old, including smokers and non-smokers which were recruited consecutively. Subjects undergone pulmonary function test which measured FEV1/ FVC, FEV1, FVC, V50 and V25.Results: Subject smokers were 182 children, most of them were occasional smokers (53%), smoking period around 1-2 years (54%), using filtered cigarettes (58%), and consuming 1-10 cigarettes per day (93%). Mean pulmonary function parameter values(FEV1 and FVC) of smokers were lower than non-smokers (p<0.05). There was significant difference in proportion of pulmonary function abnormalities between smokers and non-smokers (p=0.016). There was relation between types of cigarettes with pulmonary dysfunction (p<0.001), the abnormalities mostly impact to kretek smokers. There was relation between smoking behaviour with pulmonary function abnormalities (p=0.046).Conclusion: Mean pulmonary function parameter values (FEV1 and FVC) of smokers were lower than non-smokers. Pulmonary dysfunction proportion among adolescent street children smokers was 26.5%, consist of combined disorder (16.1%), restrictive (8.2%) and obstructive (2.2%). There was relation between types of cigarettes and smoking behavior with pulmonary function abnormalities.